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-----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEqG5UsNXhtOCrfGQP+7dXa6fLC2sFAl5zWDsACgkQ+7dXa6fL C2upyg/+KFOmCLFEAgwRnBn4zDDcdDT9du25Duv2d/XfAo2Zx+Nbwm7jjKR/mrRZ mRbcvb8qj92O4dzMCwcqDGpKT3xJmCZhxJQORBm55Bjme7tJDqXuQVYp1fZVy3Ka XJS0jr4n5HTorW8iGSIPJmE76XpIPq0ANhPnLbq8wZELyw87K7+J5ZdHcnUh+myd uKs8sIQ8PQZg6JBBj5wPRgrAkOFUTTINiUqy37ADIY1oZyzW1rUlAeAxVXV7Dnx7 G1HvlVaDw72G1XG4pn0pNBCdGJuNF0dG2zRbdjS+kGCmf6MB6x8e22JjWW9r+r9m iJd4B2R/3V/kUn4i3B+jfOWD5DKzCW4lDixh9D2LzM16GUinYQTkrH9e8jMBBJGW 7p7X9Vl3o0Nt6NDVLmTKuyomvvtT/jMYiDtKjPuvxlPCGduXB8HvNRFxsKIEVRHi 4RcdTqUSOsyUnOvTfDTfyBu1srKFqTC3HzAunntV88UfGtWdhXRCWMejHdNK3uI9 BC4Ym6jkmFnbQzytW/6noprvVlDfgAuyplcyhnnJ5fVNm4YQ7lZLZPgf5TS+gchI fMwDfRz3hOLDZ5WjCx6QLT1NHaowQLTrzTq0X3uj2ZrcnRORURvk8GfamzZoS9a5 omyQgBfm+1YpF2VwCyU42DytdmFDUCDofKondOXh8QciwhXqaRs= =bvsn -----END PGP SIGNATURE----- Merge tag 'rxrpc-fixes-20200319' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs David Howells says: ==================== rxrpc, afs: Interruptibility fixes Here are a number of fixes for AF_RXRPC and AFS that make AFS system calls less interruptible and so less likely to leave the filesystem in an uncertain state. There's also a miscellaneous patch to make tracing consistent. (1) Firstly, abstract out the Tx space calculation in sendmsg. Much the same code is replicated in a number of places that subsequent patches are going to alter, including adding another copy. (2) Fix Tx interruptibility by allowing a kernel service, such as AFS, to request that a call be interruptible only when waiting for a call slot to become available (ie. the call has not taken place yet) or that a call be not interruptible at all (e.g. when we want to do writeback and don't want a signal interrupting a VM-induced writeback). (3) Increase the minimum delay on MSG_WAITALL for userspace sendmsg() when waiting for Tx buffer space as a 2*RTT delay is really small over 10G ethernet and a 1 jiffy timeout might be essentially 0 if at the end of the jiffy period. (4) Fix some tracing output in AFS to make it consistent with rxrpc. (5) Make sure aborted asynchronous AFS operations are tidied up properly so we don't end up with stuck rxrpc calls. (6) Make AFS client calls uninterruptible in the Rx phase. If we don't wait for the reply to be fully gathered, we can't update the local VFS state and we end up in an indeterminate state with respect to the server. ==================== Signed-off-by: David S. Miller <davem@davemloft.net> |
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